the low pressure service access gauge port valve is located on top of the suction accumulator/drier The high pressure service access gauge port valve is located in the discharge line near the A/C condenser core

ok, I think I've got it. As far as I can tell, just behind and to the right of the coolant overflow tank and the wiper fluid tank is a black cylinder (about the size of an extra large oil filter)with two lines coming out of it ... There is also a smaller line (a few inches long sticking straight up) which seems as if the adapter from this can of regrigerant would fit onto.

I'm assuming this is idiot proof and the small attachment on the can of refrigerant wouldn't fit where it's not supposed to.

Just wanted to make sure this wasn't something that was under, around and hiding behind something and hard to get to.